DEVELOPMENT OF HYDRAULIC BALL (HY-BALL) CONTROL SYSTEM. Quarterly Progress Report No. 4, April-June 1963

Technical Report · Sat Jun 29 04:00:00 EDT 1963

OSTI ID:4660425

Physics analyses of axial power distributions for the HyBall controlled core continued. Axial power distributions were computed for a two-zone fuel- enrichment scheme; the computations included all effects with the exception of changes due to fuel burnup. A brief preliminary study comparing the control effectiveness of spherical and cylindrical control elements was completed. A study and tests on a gravity-scram type of system, which is considered as an alternate to the preliminary reference design reversedflow scram type of system, were begun. Tests, using the cold-test loop which operates with water at room temperature, were conducted with the following configurations: eductor-driven system, gravity-scram system, singlestage plug-buffer, plug-valve buffer, inverted plug-valve buffer, and five-column parallel-stepped system. The design, construction, and checkout tests of the hot-test loop were completed on schedule. The first test, with Hy-Ball assemblies operating in 545 deg F, 1000 psia water for 500 hours, was completed. During this test a downward flow of water was maintained in the Hy-Ball columns; this condition simulated the reactor condition of holding the control elements in the in-core position for a reasonably long period of time. (auth)

• Research Organization: General Nuclear Engineering Corp., Dunedin, Fla.
• NSA Number: NSA-17-036869
• OSTI ID: 4660425
• Report Number(s): GNEC-287; EURAEC-800
• Country of Publication: United States
• Language: English

Related Subjects

BURNUP
CONFIGURATION
CONTROL ELEMENTS
CONTROL SYSTEMS
CYLINDERS
DISTRIBUTION
ENRICHMENT
FUELS
HYDRAULICS
PLANNING
POWER
REACTOR CORE
REACTOR TECHNOLOGY
SHUTDOWN
SPHERES
TESTING
VALVES
WATER COOLANT
ZONES